"JOHN!"
The army doctor hit his head on the bottom of the sink. He swore, rocking out of his position. He'd been fetching a bottle of cleaner from beneath the bathroom sink when he'd heard the shout. After a moment to curse his flatmate's horrible timing, his mind began running through all the worst-case-scenarios and all of the ridiculous things Sherlock could be doing simultaneously.
"What?" he called, rubbing the back of his skull. "Sherlock?"
"JOHN I AM IN NEED OF IMMEDIATE ASSISTANCE!"
"What!" Watson yelled, peering out of the door and trying to pinpoint the location of the shout.
"FOR CHRISSAKES JUST COME HERE NOW!" The shout